Question

CaO-Ca(OH)2-Va(NO3)2​

Answer 1

2Ca + O2 = 2СаO

CaO+H2O = Ca(OH)2

Ca(OH)2 + 2HNO3 = Ca(NO3)2+ 2H2O

Ca(NO3)2 + BaCO3 = CaCO3 +Ba(NO3)2

Va можно Ba

Answer 2

The expression "CaO-Ca(OH)2-Va(NO3)2" appears to be a combination of chemical compounds and elements. Let's break it down:

1. CaO: This represents calcium oxide, a chemical compound consisting of calcium (Ca) and oxygen (O). Its chemical formula is CaO.

2. Ca(OH)2: This represents calcium hydroxide, another chemical compound. It consists of calcium (Ca), hydrogen (H), and oxygen (O). Its chemical formula is Ca(OH)2.

3. Va(NO3)2: The notation "Va(NO3)2" does not correspond to any known chemical compound or element. It's possible that there's a typographical error or misunderstanding in the notation.

If you have a specific chemical reaction or question related to these compounds, please provide more details so I can assist you further.